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Workaround
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Thu, 28 May 2026 13:30:00 +0000
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| Metrics |
ssvc
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Thu, 28 May 2026 12:15:00 +0000
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threat_severity
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threat_severity
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Thu, 28 May 2026 04:45:00 +0000
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| Description | A flaw was found in Keycloak. An authenticated administrator with the `manage-clients` role can exploit a Time-of-check to time-of-use (TOCTOU) vulnerability in the name-based admin role checks. This allows the attacker to escalate their privileges to `realm-admin` for all users within the realm, granting them extensive control over the system. The composite role relationship persists even after the attacker's own permissions are revoked and across system reboots. | |
| Title | Keycloak: keycloak: privilege escalation via time-of-check to time-of-use (toctou) vulnerability | |
| First Time appeared |
Redhat
Redhat build Keycloak |
|
| Weaknesses | CWE-367 | |
| CPEs | cpe:/a:redhat:build_keycloak: | |
| Vendors & Products |
Redhat
Redhat build Keycloak |
|
| References |
| |
| Metrics |
cvssV3_1
|
Projects
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Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2026-05-28T12:16:58.840Z
Reserved: 2026-05-28T03:31:58.205Z
Link: CVE-2026-9796
Updated: 2026-05-28T12:16:54.515Z
Status : Awaiting Analysis
Published: 2026-05-28T05:16:41.153
Modified: 2026-05-28T13:44:54.327
Link: CVE-2026-9796
OpenCVE Enrichment
Updated: 2026-05-28T05:30:06Z